"As soon as they pass me, they see the guy has a gun to me," he said. "They stopped right there. The guys in the gray Mercedes asked me, 'Did you just get jacked?' I said yes. Immediately, they started shooting at the suspect."

Hutchins was wounded in the abdomen. Investigators said he tried to run away and ended up being bitten by a dog. He was taken to Ben Taub Hospital in serious but stable condition. He is expected to survive and has been charged with aggravated robbery with a deadly weapon.

"Those two guys that stopped in this Mercedes might just seem like random people to you, but they're angels to me," Dorsey said.

Neither the victim nor the witnesses were injured.

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